2b7a

The structural basis of Janus Kinase 2 inhibition by a potent and specific pan-Janus kinase inhibitor

Method: X-RAY DIFFRACTION Dmax: 106.1 Å Quality: GOOD

1. Protein Identity and Related Structures Protein Identity & Related Structures

Tyrosine-protein kinase JAK2

Homo sapiens

UniProt O60674

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 840–1132 Fragment:catalytic domain Mutation:N1129Q Non-standard monomer:Yes (specific site not provided by mmCIF) IZA 2-TERT-BUTYL-9-FLUORO-3,6-DIHYDRO-7H-BENZ[H]-IMIDAZ[4,5-F]ISOQUINOLINE-7-ONE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6;293 K;28% PEG 8000, 0.2M ammonium acetate, 0.1M citrate, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.00 Å R-free 0.249
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 840–1132 Fragment:catalytic domain Mutation:N1129Q Non-standard monomer:Yes (specific site not provided by mmCIF) IZA 2-TERT-BUTYL-9-FLUORO-3,6-DIHYDRO-7H-BENZ[H]-IMIDAZ[4,5-F]ISOQUINOLINE-7-ONE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6;293 K;28% PEG 8000, 0.2M ammonium acetate, 0.1M citrate, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.00 Å R-free 0.249

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

161 other PDB entries and 250 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name JAK2_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–293; UniProt 840–1132 Author chain B; PDBConstruct 1–293; UniProt 840–1132

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 2b7a

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2b7a
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2. Structure Basics 2. Structure Basics

Entry ID entry_id2b7a
Deposition date deposition_date2005-10-04
Structure title titleThe structural basis of Janus Kinase 2 inhibition by a potent and specific pan-Janus kinase inhibitor
Keywords keywordsKinase, TRANSFERASE; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier30.41
Radius of gyration Rg (electron density) rg_electron29.93
Forward intensity I(0) i075668000.00
Molecular weight molecular_weight68392.0 kDa
Excluded volume excluded_volume85559 ų
Envelope volume envelope_volume107770 ų
Hydration-shell volume shell_volume31353 ų
Envelope diameter envelope_diameter109.9
Shell Rg shell_rg35.26
Envelope Rg envelope_rg30.29
Shape Rg shape_rg29.93
Total Rg total_rg30.44
Total atoms total_atoms4808
Residues n_residues571
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax106.1
Rg (real space) rg_real30.62
Rg uncertainty (real space) rg_real_error0.87
I(0) (real space) i0_real7.5670e+07
I(0) uncertainty (real space) i0_real_error1.1090e+06
Rg (reciprocal space) rg_reciprocal30.53
I(0) (reciprocal space) i0_reciprocal75660000.0000
Solution quality estimate total_estimate0.8389
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary30.6
Skewness Skewness skewness0.526
Kurtosis Kurtosis kurtosis-0.235
Angular range angular_range— – 0.2600 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha22980000.0000
Real-space data points n_real_points53
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.736; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.808; Smooth: 0.885

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd2b7aa_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.144 — Protein kinase-like (PK-like)
Superfamily Superfamily superfamilyd.144.1 — Protein kinase-like (PK-like)
Family Family familyd.144.1.0 — automated matches
Domain ID domain_idd2b7ab_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.144 — Protein kinase-like (PK-like)
Superfamily Superfamily superfamilyd.144.1 — Protein kinase-like (PK-like)
Family Family familyd.144.1.0 — automated matches

CATH v4.4 (4 domains)

Domain ID domain_id2b7aA01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology200 — Phosphorylase Kinase; domain 1
Homologous superfamily homologous superfamily20 — Phosphorylase Kinase; domain 1
Domain ID domain_id2b7aA02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology510 — Transferase(Phosphotransferase); domain 1
Homologous superfamily homologous superfamily10 — Transferase(Phosphotransferase) domain 1
Domain ID domain_id2b7aB01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology200 — Phosphorylase Kinase; domain 1
Homologous superfamily homologous superfamily20 — Phosphorylase Kinase; domain 1
Domain ID domain_id2b7aB02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology510 — Transferase(Phosphotransferase); domain 1
Homologous superfamily homologous superfamily10 — Transferase(Phosphotransferase) domain 1

8. Citations (1)

9. Files and Curves (10)